<?php
/**
 * SimplifyPHP Framework
 *
 * This file is part of SimplifyPHP Framework.
 *
 * SimplifyPHP Framework is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * SimplifyPHP Framework is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @author Rodrigo Rutkoski Rodrigues, <rutkoski@gmail.com>
 */

require_once(dirname(__file__).'/IDictionary.php');

/**
 * Provides an interface for managing parameters as key->value pairs.
 * All keys in an IParameterHolder are unique.
 *
 * @author Rodrigo Rutkoski Rodrigues, <rutkoski@gmail.com>
 * @package Simplify_Kernel
 */
interface IParameterHolder extends IDictionary
{

  /**
   * Set the value for a given key if that key is not already set.
   *
   * @param $name string The key.
   * @param $value mixed The value.
   * @return void
   */
  public function setDefault($name, $value, $filter = null);

  /**
   * 
   * @param $value
   * @param $default
   * @param $filter
   * @return unknown_type
   */
  public function getDefault($value, $default, $filter = null);

}

?>